Table 2.

Characteristics of 20 K. pneumoniae isolates from 4 cryptogenic liver abscesses and 16 non-cryptogenic liver abscesses.

Mode of abscess acquisition and microbial type	Chromosomal virulence genes						Plasmid virulence genes					Srting test result	Sequence type	Patho type
	K1/ K2	entB	ybtS	clbA	kfu	allS	rmpA	rmpA2	iucA	iutA	iroB
Cryptogenic
Monomicrobial	K1	+	+	+	+	+	+	+	+	+	+	+	ST23	hvKp
Monomicrobial	K1	+	+	+	+	+	+	+	+	+	+	+	ST23	hvKp
Monomicrobial	K1	+	+	+	+	+	+	+	+	+	+	+	ST23	hvKp
Monomicrobial	K2	+	+	–	–	–	+	+	+	+	+	+	ST65	hvKp
Non-cryptogenic
Monomicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ST54	cKp
Monomicrobial	–	+	–	–	+	–	–	–	–	–	–	–	ST4023	cKp
Polymicrobial	–	+	–	–	–	–	–	–	–	–	–	–	ND	cKp
Polymicrobial	–	+	–	–	–	–	–	–	–	–	–	–	ST2935	cKp
Polymicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ND	cKp
Polymicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ST16	cKp
Polymicrobial	–	+	–	–	–	–	–	–	–	–	–	–	ND	cKp
Polymicrobial	–	+	+	–	+	–	–	–	–	–	–	–	ST231	cKp
Polymicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ST628	cKp
Polymicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ST36	cKp
Polymicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ND	cKp
Polymicrobial	–	+	+	–	–	–	–	–	–	–	–	–	ST377	cKp
Polymicrobial	–	+	–	–	–	–	–	–	–	–	–	–	ND	cKp
Polymicrobial	–	+	–	–	–	–	–	–	–	–	–	–	ND	cKp
Polymicrobial	–	+	+	–	+	–	–	–	–	–	–	–	ST231	cKp
Polymicrobial	–	+	+	–	+	–	–	–	–	–	–	–	ST231	cKp

^*+, positive; -, negative. ND, not determined.